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She's the tops: the Duchess of Cambridge arrives at a charity gala in aid of Action on Addiction at Kensington Palace

All pictures: Ian West/PA

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Serene in cream: the Duchess of Cambridge at Prince George's christening in a ruffled suit, the colour of which matched George's Honiton lace gown

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Back in shape: In her first solo engagement after the birth of Prince George, the Duchess of Cambridge wore skinny jeans, a jacket and cork wedges for an event at the Olympic Park

Rex Features

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Favourite footwear: Kate is often seen in a pair of high wedges

Jeremy Selwyn

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Still glowing: The Duchess of Cambridge wore a Ralph Lauren blazer, polka-dot printed T-shirt, skinny black jeans, a sage jacket and wedges as she made her first public appearance six weeks following the birth of Prince George

Rex Features

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Baby bliss: the Duchess of Cambridge looked radiant as she left hospital following the birth of Prince George wearing a bespoke blue polka dot dress by Mayfair-based designer Jenny Packham

Getty

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Pretty in pink: On her last engagement before the birth - attending the Trooping the Colour ceremony at the Palace - eight-month pregnant Kate wore a pale pink Alexander McQueen coat and matching hat

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Wild child: the Duchess, on her last solo engagment before giving birth, chose a £169 leopard-print mac from Hobbs. She was naming the Royal Princess cruise liner at Southampton - the original ship was named by Princess Diana in 1984

PA

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Peachy pretty: the Duchess of Cambridge arrives at Westminster Abbey for the anniversary Coronation service

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Sunny delight: Kate, heavily pregnant, cheered up a grey day when she wore an Emilia Wickstead outfit to a Buckingham Palace garden party

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For the children: the Duchess in candy shades at Naomi House, a children's hospice in Hampshire, wearing a coral coat by Tara Jarmon

Getty Images

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She's magic: Kate has got great legs and she’s not afraid to show them. The Duchess wore a £38 polka-dot dress from Topshop for a tour of the studios at which the Harry Potter films were created. She teamed it with a neatly fitted peplum trim jacket by Ralph Lauren and a pair of suede stiletto pumps

Tim Rooke / Rex Features

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Red white and blue: The Duchess of Cambridge chose a spring floral dress by British-based designer Erdem to attend a primary school in Manchester

PA

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Glowing and showing: the Duchess reveals her neat baby bump in a mint Mulberry coats and neat hat as she meets participants during the National Review of Queen's Scouts at Windsor

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Cheery stuff: the Duchess of Cambridge braved the cold in a cheerful bright red coat, gloves and boots at Dumfries House during a two-day visit to Scotland (Picture: PA)

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Tartan touch: the Duchess of Cambridge arrives in Glasgow at the start of a two-day visit to Scotland wearing a checked military-style flannel coat by little known British fashion label Moloh. Sheltering her growing baby bump from the icy chill, she also donned black opaque tights and knee-high suede boots

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Royal sizzler: the Duchess manages to look cosy and stylish around the campfire on a visit to a Scout centre in the Lake District

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The common touch: Kate sails through the barriers as she pays a visit to Baker Street Tube station wearing a short teal coat by designer Marlene Birger

Getty

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Baby on board: Kate was given a badge as she joined the Queen and Prince Philip on their Tube visit to celebrate 150 years of the Underground

PA

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Thrifty: the Duchess of Cambridge, who is five months pregnant, wore the same coat as last year as she attended a St Patrick's Day parade at Mons Barracks in Aldershot

Reuters

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Smiling through the rain: the Duchess in dusky pink with chocolate brown accessories as she and Prince William attend Gold Cup Day at Cheltenham

Splash

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Picture of health: The Duchess of Cambridge looked glowing on a trip to Grimsby wearing a three-quarter length chocolate brown belted Hobbs coat

Reuters

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Carefree: the Duchess of Cambridge wears a £290 wrap dress from Maxmara Studio as she visits Hope House, an addiction charity in Clapham, in February

AP

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Elegant as ever: Kate wears a wrap dress from Maxmara Studio

Getty

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Picture perfect: The Duchess of Cambridge at the National Portrait Gallery at the official unveiling of her first portrait. Kate wore a deep red chiffon dress from Whistles with a dark velvet waistband

PA

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Good sport: The Duchess of Cambridge made her first public appearance since announcing her pregnancy at the BBC's Sport Personality of the Year Award

PA

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Split decision: Kate wore a floor-length emerald green gown at the BBC's Sport Personality of the Year Award in December 2012

PA

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Tartan treasure: Kate wore a tartan Alexander McQueen outfit when she visited her old prep school in Berkshire to celebrate St Andrew’s Day

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Kate visited Cambridge in November 2012 for the first time since the Queen conferred Dukedom on the royal couple. The Duchess wore a pink MaxMara Studio 'Belli' belted wool coat, a MaxMara dress and brown suede Aquatalia boots

AFP/Getty Images

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The layered look: The Duchess of Cambridge debuts a new 70s-style fringe during a visit to the Natural History Museum in November 2012

AFP/Getty Images

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70s girl: Kate wore a deep green Mulberry dress and black heels

Reuters

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Sombre: The Duchess of Cambridge attended the annual Remembrance Sunday ceremony at the Cenotaph in Whitehall wearing a Diane von Furstenberg coat and poppy plated with 18-carat gold and featuring red and black crystals

REUTERS/Luke MacGregor

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Old school uniform: the Duchess of Cambridge looked suitably regal in black lace Alice Temperley at a St Andrews 600th Anniversary Appeal in November 2012 in London (Picture: Eddie Mulholland/Getty)

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She's a natural: Kate looks totally at ease in her role as Duchess of Cambridge as she visits a community garden in Elswick Park on October 10 this year. (Photo by Samir Hussein/Getty Images)

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Footie fan: Kate revealed she supports Reading FC when she visited the official launch of The Football Association's National Football Centre at St George's Park, Burton-upon-Trent, on October 9 (Photo by Chris Jackson - Pool /The FA via Getty Images)

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The princess's new clothes: Kate prepares to dance at the Vaiku Falekaupule on September 18 in Tuvalu. Wills and Kate also took in Singapore, Malaysia and the Solomon Islands as part of a Diamond Jubilee tour representing the Queen (Photo by Arthur Edwards - Pool/Getty Images)

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The frizz factor: Kate's hair issues made headlines when she toured the Far East and South Pacific (Photo: Mark Large - Pool/Getty Images)

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Come fly with me: Kate shows off her tan as she disembarks from a plane at Honiara International Airport in the Solomon Islands. (Photo: Chris Jackson/Getty Images)

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Gap yah style: Kate and William trek through the rainforest in Danum Valley Research Center on the island of Borneo (Photo: VINCENT THIAN/AFP/GettyImages)

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Picture of modesty: Kate on a visit to Assyakirin Mosque in Kuala Lumpur, Malaysia on day four of the Diamond Jubilee Tour. (Photo: Tim Rooke - Pool/Getty Images)

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It's an honour: Kate visits the graves of Allied forces who died in the Second World War at the Kranji Memorial Cemetry, Singapore. (Photo: NICOLAS ASFOURI/AFP/GettyImages)

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Royal visit: Kate arrives at Gardens by the Bay, a park in Singapore (Photo: Chris Jackson/Getty Images)

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Pattern me purple: Kate in a Prabal Gurang dress at The Istana, the official residence of the President of Singapore, on the first day of the royal couple's tour of the Far East (Photo: Chris Jackson - Pool/Getty Images)

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Games maker: Kate attends the Women's Hockey bronze medal match between New Zealand and Great Britain at the 2012 London Olympic Games (Photo: Pascal Le Segretain/Getty Images)

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Making a splash: Kate is dressed for a day on the water at the Olympic Weymouth and Portland Venue on day six of the 2012 Games. (Photo: Laurence Griffiths/Getty Images)

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Wellies on, chaps! Kate mucks in at the 'Expanding Horizons' Primary school camp at Margaret MacMillan house in Wrotham, Kent, in June (Photo: David Parker/AFP/GettyImages)

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Tips from Granny-in-law: Kate does her take on the Queen's one-colour hat-and-suit combo as she boards the royal barge for the Thames Diamond Jubilee Pageant on the Thames on June 3 (Photo: DAVID CRUMP/AFP/GettyImages)

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School uniform: Kate opts for ankle boots and an Orla Kierly coat as she meets children at Rose Hill Primary School in Oxford in February. (Photo: Chris Jackson/Getty Images)

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Royal wedding number two: Kate attends the wedding of her cousin-in-law Zara Phillips, the Queen's eldest granddaughter, to rugby captain Mike Tindall at a private ceremony Canongate Kirk in Edinburgh on July 30, 2011. (Photo: DYLAN MARTINEZ/AFP/Getty Images)

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Fit for a queen: Kate stuns crowds in a lilac Alexander McQueen gown at the BAFTA Brits To Watch event held at the Belasco Theatre in Los Angeles in July 2011. (Photo: Kevork Djansezian/Getty Images)

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Chukker for charity: Kate drops in to the Santa Barbara Racquet and Polo Club in Santa Barbara, California, on July 9 2011, as part of a royal tour of the US. The club was holding a Foundation Polo Challenge in aid of the American Friends of the Foundation of Prince William and Prince Harry. (Photo: Chris Jackson/Getty Images)

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Royal rodeo: Wills and Kate arrive at the launch of the Calgary Stampede on July 8, 2011 in Calgary, Canada. (Photo: Phil Noble - Pool/Getty Images)

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Red and white: Kate opts for Canadian national colours at the Canada Day celebrations in Ottawa on July 1, 2011. (Photo: Mark Large - WPA Pool/Getty Images)

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Bit of a breeze, isn't there? Kate has some skirt issues as she disembarks a plane in the remote Canadian area of Yellowknife. Designer Jenny Packham has since admitted she will be weighing the hems of Kate's dresses down in the future (Photo: Chris Jackson/Getty Images)

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Game for a giggle: Kate looks cheery in Yellowknife, Canada. (Photo by Chris Jackson/Getty Images)

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Down to business: Kate in a professional Roland Mouret dress and Smythe blazer teamed with a Mulberry handbag as she boards a plane of the Royal Canadian Air Force at Heathrow Airport in June 30, 2011 (Photo: Steve Parsons - WPA Pool/Getty Images)

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Look of the Irish: Kate sports a gold shamrock brooch loaned to her by the 1st Battalion Irish Guards during a medal parade for the regiment at the Victoria Barracks in Windsor in June 2011 (Photo: CARL COURT/AFP/Getty Images)

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Bride and groom: the Duke and Duchess of Cambridge wed in Westminster Abbey on April 29, 2011. The marriage was led by the Archbishop of Canterbury and attended by 1900 guests, including foreign Royal family members and heads of state. (Photo: Chris Jackson/Getty Images)

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The dress revealed: Kate's wedding dress was kept secret up to the last minute. It was made by Sarah Burton of Alexander McQueen (Photo: Pascal Le Segretain/Getty Images)

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Back to school: Prince William and Kate Middleton visit their former university, St Andrews, on February 25, 2011 (Photo: Jeff J Mitchell/Getty Images)

Getty

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Smile nicely, dear: Kate and William officially announce their engagement on November 16, 2010. The couple finally decided to marry while on holiday in Kenya after eight years of dating and speculation. (Photo:y Chris Jackson/Getty Images)

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Chilly old day: Kate wraps up at the Cheltenham Racecourse in March 2008. (Photo: Getty Images/Getty Images)

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Country bumpkin: Kate gets her tweed on at the first day of the annual Cheltenham Race Festival in March 2007. (Photo: CARL DE SOUZA/AFP/Getty Images)

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One of the family: Kate heads for the Royal Box on the final day of the 2007 Cheltenham Race Festival (Photo: CARL DE SOUZA/AFP/Getty Images)

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Student sweethearts: Kate Middleton and Prince William on the day of their graduation ceremony at St Andrew's University. The couple were university flatmates and began dating in 2003 (Photo by the Middleton Family/Clarence House via GettyImages)

Middleton Family/Clarence House via GettyImages

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Degree duchess: Kate at her graduation ceremony after gaining a 2:1 in history of art from St Andrews University on June 25, 2005. Prince William graduated with a masters in geography on the same day (Photo: MICHAEL DUNLEA/AFP/Getty Images)

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One for the album: Kate Middleton aged five (Photo: the Middleton Family/Clarence House via GettyImages)

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Queen of the desert: Kate Middleton (left) aged four with her father and sister Pippa in Jerash, Jordan. The family moved to Amman in Jordan for two and a half years (Photo: the Middleton Family/Clarence House via Getty Images)

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Going up in the world: three-year-old Kate looks determined to succeed on a family holiday in the Lake District (Photo: the Middleton Family/Clarence House via GettyImages)

From the family holiday snap and the early days with William, to the latest official visit, with a degree and a couple of royal weddings along the way - Kate Middleton, this is your life (so far).